clearer logging and error feedback, and minor fixes
fix throwing error in response to code review
Merge pull request #526 from ahgittin/fix/misc

clearer logging and error feedback, and minor fixes
Adds ApplicationBuilder.Builder.appImpl
Adds MovableElasticWebAppCluster.TIME_TO_LIVE_SECONDS
* this fix contains noninteractive installation fixes for debian based system
* this fixes issues with the installation of unauthenticated packages under debian on EC2
* this fixes issues with the installation of MySQL under debian on EC2
* this fixes issues with the installation of PHP5 (and everything else relying on libc6) under debian on EC2
* included the debian supression mechanism for interative configuration
* fixed a bug with the common commands instal method which I caused; the export should be done inside the apt-get check
* excluded the localhost test on the mysqlliveec2 test since it is already tested
removed some debug echo's
fix for nginx on osx
aled's comments addressed
Merge pull request #530 from pveentjer/debian-noninteractive-fixes

debian ec2 fixes (mysql + php5)
Merge pull request #532 from andreaturli/nginx

fix for nginx on osx
Adding Debian example to brooklyn.properties.
Updated jboss logo. AS6 and AS7 entities updated to reflect change.
AutoScaler: calls listener if max size reached

- tracks the "unbounded pool size" (i.e. what it would be if there were
  no max pool size), and calls a listener if this goes above the
  max pool size for a sustained period of time
AutoScaler tidy: extract SizeHistory class
Fix REST's ConfigSummary.defaultVal serialization

- When config key's default value is not json serialisable, was getting
  500 errors.
- Fix by just sending String representation of the default value
AutoScalerPolicy: support reconfiguring config
AutoScalerPolicy: emit maxSizeReached sensor

- Instead of calling listener, emit a sensor event on the associated
  entity